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Use `--upgrade` instead of `--ignore-installed` to upgrade `pip`. by ezio-melotti · Pull Request #254 · actions/python-versions

This PR fixes the following issues:

I tried running both commands in a test venv.

Using --ignore-installed leaves behind pip-23.2.dist-info:

$ python3 -m && source venv/bin/activate
$ ls venv/lib64/python3.11/site-packages/ | grep pip
pip
pip-23.2.dist-info
$ python -m pip install --ignore-installed pip --disable-pip-version-check --no-warn-script-location --root-user-action=ignore
Collecting pip
  Obtaining dependency information for pip from https://files.pythonhosted.org/packages/15/aa/3f4c7bcee2057a76562a5b33ecbd199be08cdb4443a02e26bd2c3cf6fc39/pip-23.3.2-py3-none-any.whl.metadata
  Using cached pip-23.3.2-py3-none-any.whl.metadata (3.5 kB)
Using cached pip-23.3.2-py3-none-any.whl (2.1 MB)
Installing collected packages: pip
Successfully installed pip-23.3.2
$ ls venv/lib64/python3.11/site-packages/ | grep pip
pip
pip-23.2.dist-info
pip-23.3.2.dist-info
$ deactivate && rm -rf venv

Using --upgrade instead of --ignore-installed removes the old version (see the Attempting uninstall: pip part in the output), upgrades pip from 23.2 to 23.3.2, and doesn't leave pip-23.2.dist-info behind:

$ python3 -m && source venv/bin/activate
$ ls venv/lib64/python3.11/site-packages/ | grep pip
pip
pip-23.2.dist-info
$ python -m pip install --upgrade pip --disable-pip-version-check --no-warn-script-location --root-user-action=ignore
Requirement already satisfied: pip in ./venv/lib/python3.11/site-packages (23.2)
Collecting pip
  Obtaining dependency information for pip from https://files.pythonhosted.org/packages/15/aa/3f4c7bcee2057a76562a5b33ecbd199be08cdb4443a02e26bd2c3cf6fc39/pip-23.3.2-py3-none-any.whl.metadata
  Using cached pip-23.3.2-py3-none-any.whl.metadata (3.5 kB)
Using cached pip-23.3.2-py3-none-any.whl (2.1 MB)
Installing collected packages: pip
  Attempting uninstall: pip
    Found existing installation: pip 23.2
    Uninstalling pip-23.2:
      Successfully uninstalled pip-23.2
Successfully installed pip-23.3.2
$ ls venv/lib64/python3.11/site-packages/ | grep pip
pip
pip-23.3.2.dist-info

Note that:

  • just removing --ignore-installed is not enough, since no upgrade takes place unless --upgrade is also added
  • the --ignore-installed has been there since the beginning (c641695)
  • I'm not 100% sure this will fix the linked issue, nor I'm sure how to verify/test that